High-value organic solvent recovery and reuse in perovskite solar cell manufacturing

IF 12.5 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Advances Pub Date : 2025-08-20 DOI:10.1126/sciadv.adt6008

Ziling Zheng, Yunpeng Zhou, Yuchao Wang, Ziming Cao, Rui Yang, Yaxing Li, Emely Gu, Jizhong Yao, Zheng Wang, Jun Ma, Buyi Yan, Le Shi

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Abstract

Recycling high-value organic solvents is crucial but challenging in various industries. For example, the perovskite solar cell (PSC), a rising star of photovoltaic industry, calls for proper management of solvents like N,N-dimethylformamide (DMF). Traditional solvent recovery methods are often less effective, costly, and energy-intensive. To address this, we developed a multistage air-gap membrane distillation (MAMD) system that efficiently recovered DMF from waste solutions using industrial waste heat. Our MAMD system achieved a DMF enrichment factor up to 314 (increasing the concentration from 0.3 to 94.2 weight %) and stable operation over 60 hours. The recovered DMF (94.2 weight %) was used in perovskite minimodule fabrication, achieving a certified stabilized power output of 19.97%. The narrow efficiency deviation, state-of-the-art power conversion efficiency, and small hysteresis demonstrated the viability of using the recovered DMF in industrial fabrication. These results demonstrate the potential of our MAMD system to minimize the environmental footprint and promote sustainable PSC manufacturing.

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钙钛矿太阳能电池制造中高价值有机溶剂的回收与再利用

回收高价值有机溶剂在各个行业都是至关重要但具有挑战性的。例如，光伏产业的后起之星——钙钛矿太阳能电池（PSC）就要求对N，N-二甲基甲酰胺（DMF）等溶剂进行适当的管理。传统的溶剂回收方法通常效率较低，成本高，耗能大。为了解决这个问题，我们开发了一种多级气隙膜蒸馏（MAMD）系统，该系统利用工业废热从废液中有效地回收DMF。我们的MAMD系统实现了DMF富集因子高达314（将浓度从0.3增加到94.2重量%），并且稳定运行超过60小时。回收的DMF（94.2重量%）用于钙钛矿微型组件制造，获得了19.97%的认证稳定输出功率。窄的效率偏差、最先进的功率转换效率和小的滞后表明了将回收的DMF用于工业制造的可行性。这些结果证明了我们的MAMD系统在最大限度地减少环境足迹和促进可持续PSC制造方面的潜力。

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来源期刊

Science Advances 综合性期刊-综合性期刊

CiteScore

21.40

自引率

1.50%

发文量

1937

审稿时长

29 weeks

期刊介绍： Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.